Learn all Concepts of Chapter 3 Class 10 (with VIDEOS). Check - Linear Equations in 2 Variables - Class 10

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  1. Chapter 3 Class 10 Pair of Linear Equations in Two Variables
  2. Serial order wise

Transcript

Ex 3.3, 3 Form the pair of linear equations for the following problems and find their solution by substitution method. (i) The difference between two numbers is 26 and one number is three times the other. Find them. Let Larger Number be x & Smaller Number be y Given that Difference between two numbers = 26 x – y = 26 Also, one number is 3 times other x = 3y Now, our equations are x – y = 26 …(1) x = 3y …(2) Putting (2) in (1) x – y = 26 (3y) – y = 26 2y = 26 y = 26/2 y = 13 Putting y = 13 in (2) x = 3y x = 3 (13) x = 39 Hence , x = 39 and y = 13 is the solution So, Numbers are 39 and 13

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.